baber/WOPTO huggingface dataset:
Patent GB-778832-A (GB)
Title: A travelling wharf crane portal with four travelling wheels
IPC: B66C5/10
Filed: 1955-07-20
Abstract: 778,832. Cranes. MASCHINENFABRIK AUGSBURG NURNBERG AKT.-GES. July 20, 1955 [July 23, 1954], No. 20981/55. Class 78 (4). A travelling wharf crane portal is mounted on four wheels two of which, 5, 6, are supported at the ends of a beam 3 which is pivoted to a leg 1 of the portal at 4 for limited movement against the action of stacks of spring cups 10. Keys (not shown) prevent swinging of the beams in a horizontal plane. The wheels 5, 6 are driven by individual driving mechanism 7, 8. The portal may have two or three legs.
Patent GB-125341-A (GB)
Title: Improvements in Fuel Distributing and Controlling Mechanism for Internal Combustion Engines.
Inventor: WEISS CARL WILLIAM
IPC: F02M69/50
Filed: 1918-12-17
Abstract: 125,341. Weiss, C. W. Dec. 17, 1918. Liquid fuel, supplying.-A measuring and distributing valve for liquid comprises a rotary disk d with a hollow stem containing a piston c. Both the cavity in the stem and the space h around the valve are charged with fuel under pressure through the valve c<5> and passages d<6>, d<3>. The passage d<6> is brought alternately opposite recesses b<3> in the cover b<1> and pipes a<2> leading to the respective engine cylinders. When opposite the latter the pressure of the fuel in the chamber h lifts the piston e and injects the fuel into a cylinder. The stroke of the piston is controlled by a hand adjusted sleeve i which engages a ring on trunnions g on the piston or by a rod l adjusted by a centrifugal governor k.
Patent GB-1185636-A (GB)
Title: Improvements in or relating to Drive Mechanism including a Hydraulic Torque Converter
Inventor: MOSS NORMAN
IPC: F16H47/06
Filed: 1966-05-12
Abstract: 1,185,636. Variable-ratio transmissions. PLESSEY CO. Ltd. 28 April, 1967 [12 May, 1966], No. 21171/66. Headings F2C and F2D. Split torque on starting is provided by a torque converter 3-5 in parallel with a fixed reduction gear 9, a disengageable slip clutch 11 and a one-way clutch 12. At the higher ratios drive is through the torque converter, the clutch 12 overrunning if the starting clutch 11 is not disengaged.
Patent GB-483203-A (GB)
Title: Improvements in and relating to electric liquid-blast circuit interrupters
IPC: H01H33/98
Filed: 1937-07-30
Abstract: 483,203. Liquid - blast switches. BRITISH THOMSON-HOUSTON CO., Ltd. July 30, 1937, No. 21203. Convention date, Aug. 1, 1936. [Class 38 (v)] An H.T. circuit-breaker comprises a pressure-confining chamber containing an are-extinguishing liquid, relatively - movable contactstructure arranged upon opening of the circuit to form an arc within the chamber, and a plurality of insulating tubes supported by and extending from the side wall of the chamber to a position adjacent the path of the arc and forming passages which exhaust exteriorly of the chamber. The breaker shown is of the type in which an initial arc set up between a fixed and an intermediate contact 1, 2 causes a blast of liquid across the path of an arc subsequently set up between contact 2 and the movable contact 3, and at the exhaust 4<1> of an insulating pot 4, which may be a laminated structure impregnated with artificial resin. For quenching the arc within the pot 4, four insulating tubes 14, for example of hard fibre, are arranged with their inner ends adjacent and along the arc-path, and, if desired, so closely to the contact 3 that they are successively uncovered by the latter in its opening movement. Their outer ends exhaust exteriorly of the pot 4, to which they are secured at 14<1>, and are preferably angularly spaced in order to prevent flash-over outside the pot due to combining of the gas-bubbles. The tubes 14 provide a large voltage-creepage surface between their inner openings by reason of the tube-surfaces which extend transversely of the arc. When, in opening circuit, 3 separates from 2, the arc therebetween will first be subjected to a blast through the upper tube, subsequent jets acting upon the arc as it is drawn past the other tubes.
Patent GB-590641-A (GB)
Title: Improved apparatus for the control of a propelled body along a predetermined course
IPC: G01C19/00
Filed: 1943-12-17
Abstract: 590,641. Photo-electric apparatus for steering. GENERAL MOTORS CORPORATION. Dec. 17, 1943, No. 21214. Convention date, Aug. 3, 1942. [Class 40 (iii)] [Also in Group XXXV] In an automatic steering system for a propelled body (see Group XXXV), a magnetic compass, operating through a light-sensitive cell and an amplifier, and a gyro separately control co-operating elements of a switch controlling the steering mechanism. In Fig. 1, a reversible electric servomotor 6 operating an aircraft or ship rudder is controlled by a contact 126, moved by rotation of a directional gyro 4, co-operating with a segment 118 on a disc 114. Light from a source 58 is controlled by a supervising magnetic compass 2 so that on a deviation from course brought about by precessional error of the gyro, sufficient light falls on a photo-electric 68 to reduce the normally negative grid bias of a gas-filled valve 12 and render it conducting so as to energize magnet 154 and reverse the direction of rotation of an impeller 142 by movement of air jets 144. This impeller " hunts " and adjusts the position of disc 114 relative to the gyro housing, thereby applying the correction. Supply for the system is from a D.C. source 16 through a main switch 162, grid bias for the valve being obtained from a self-rectifying vibrator unit 18, and the anode sappty from an A.C. winding 228 on the rectifying unit through a delay unit 20. Fig. 2 shows a suitable magnetic compass of the liquidfilled type in which a bar magnet 52 is supported in a sphere 44 for rotation about a vertical or horizontal axis. A flag 56, attached to the sphere, which controls the amount of light from source 58 reaching photo-electric cell 68 through a lucite rod 64, is moved by the magnet when a deviation occurs.
Patent GB-1450093-A (GB)
Title: Manufacture of foamed plastics material
IPC: B29C44/28
Filed: 1973-05-04
Abstract: 1450093 Moulding foamed slabstock VITA INTERNATIONAL Ltd 29 April 1974 [4 May 1973] 21228/73 Heading B5A Apparatus for continuously producing foamed slabstock, e.g. polyether comprises a carrier medium 13 moving through a stationary moulding unit having side walls 11 and a base 10, a former 14 being provided on the base of the moulding unit to define troughs 16 at each side of the unit; in use a dispensing head 12 deposits foamable mixture into the troughs 16 so that there is an excess of foaming mixture at the side walls as the foaming mass moves along the unit, the former 14 being shaped such that the foaming mixture may flow to the central area while it is still mobile and before it has gelled, the foamed block thereby having a flat top. The great degree of foaming at the side walls serves to compensate for the frictional drag and surface tension effects on the rising foam. The former may be split longitudinally to enable its overall width to be adjusted. Pressure rollers 20 may be provided (Fig. 2) to smooth the top surface of the foam.
Patent GB-1528437-A (GB)
Title: Moulded glass articles having bulk homogeneity and optical quality surface
IPC: C03C23/00
Filed: 1977-05-20
Abstract: 1528437 Moulded glass articles having optical quality surface CORNING GLASS WORKS 20 May 1977 [25 May 1976] 21293/77 Heading C1M A method of making an optical glass article comprises (A) preparing a base anhydrous glass comprising, in mole per cent on an oxide basis, 70-82% SiO 2 , 10-17% Na 2 O and/or K 2 0 and 5-15% ZnO and/or PbO; (B) hydrating the base glass to a water content of at least 10% by weight; (C) partially dehydrating the glass to a water content of 3-8% by weight at a temperature above the softening point of the glass and, using an inert gas, e.g. nitrogen, at a total pressure above the vapour pressure of the water within the glass; and (D) moulding a preformed sample of the partially dehydrated glass against a die, the moulding portion of which is such that over a distance of at least 0À1 inch, on an arithmetic average basis, the roughness height is less than 3À0 microinches, under conditions sufficient to impart to a surface of the glass the surface figure of the die, the moulding being carried out under conditions sufficient to maintain the water content in the glass and to maintain or result in an optical quality surface on that portion of the glass surface to which the surface figure of the die is transferred. The process may be used to produce lenses, reflectors and similar optical elements.
Patent GB-1348464-A (GB)
Title: Phototelegraphy apparatus
IPC: H04N1/12
Filed: 1972-05-08
Abstract: 1348464 Facsimile LICENTIA PATENTVERWALTUNGS-GmbH 8 May 1972 [8 May 1971] 21432/72 Heading H4F In compact facsimile apparatus, the original at 1 is scanned by a detector 2 and the reproduction carrying medium at 8 is scanned by a modulated light source 6, detector 2 and source 6 being rigidly coupled together (link 7) with the two moving as one to ensure synchronism of the two scanning patterns. The detector 2 and light source 6 preferably move in a single linear line scan with the original and reproduction carrier undergoing a perpendicular frame shift, e.g. by driven lead-screw 12. The detector and light source can also be carried on a motor-driven lead-screw, though preferably, as shown, they act as followers against points on the surface of cam 3 opposite each other across the cam axis. The cam profile is such that the distance between the points of contact of detection and source is constant, and the rate of scan uniform, alternate lines being scanned in opposite directions. A light interference shield 9, provided with line defining slots 10 moves with the original and reproduction carrier.
Patent GB-1469501-A (GB)
Title: Method and apparatus for producing glass fibres
IPC: C03B37/04
Filed: 1975-05-20
Abstract: 1469501 Fibre production OWENS CORNING FIBERGLAS CORP 20 May 1975 [28 May 1974] 21491/75 Heading C1M Fibres of thermoplastic material (e.g. glass) are centrifugally produced through holes in rotor 10 and attenuated by a blast from burner port 15 (see Fig. 2) and the effect of the low pressure zone immediately below the rotor is reduced by attaching a flow controller 29 to the base of the rotor and flowing a fluid therethrough from quill 11, out through slot 35 and along the face of the flow controller whereby convective heat transfer from the high temperature veil 22 to the surface of the controller is inhibited so that any fibres striking the controller will not adhere thereto. The geometric profile of the controller is preferably similar to the streamline which would define the region of low pressure below the rotor in the absence of the flow controller. The slot may be immediately below the rotor wall thus giving a laminar flow down the face of the controller or may be recessed inwards to produce a turbulent layer. The fluid used may be air or steam.
Patent GB-170374-A (GB)
Title: Improvements in and relating to reciprocating pumps
IPC: F04B9/14
Filed: 1920-07-16
Abstract: 170,374. Stone & Co., Ltd., J., and Dow, W. July 16, 1920. Lever-actuated pumps; double-acting piston pumps; suction and delivery reservoirs; valves, arrangement of; valves, facilitating removal of.- A double-acting pump comprises a barrel band suction and delivery ducts c, d parallel to the' barrel and preferably integral therewith. A removable end plate q, having a chamber s open to the duct c, carries a suction valve p for one end of the barrel, and a removable plate t carries suction and delivery valves u, v for the left and a delivery valve w for the right of the barrel. The plate t is enclosed by a removable cover 6 formed with suction and delivery chambers z, 4 separated by a partition 7. The piston l is actuated by a hand-lever j, the handles of which may be adjustably mounted on the squared end of the lever spindle. The covers q, 6 may have end flanges to enable the pump to be mounted in either vertical or horizontal position.
Patent GB-1393715-A (GB)
Title: Method of manufacturing a reforming catalyst
IPC: B01J23/62
Filed: 1972-05-09
Abstract: 1393715 Catalyst for reforming gasoline UNIVERSAL OIL PRODUCTS CO 9 May 1972 [10 May 1971] 21510/72 Heading C5E [Also in Division B1] Reforming of gasoline boiling range hydrocarbon feedstock is effected by a process wherein the feedstock is contacted under reforming conditions, for example including a temperature of from 427 to 593 C. and a pressure of from 50 to 1000 p.s.i.g., with catalyst which has been prepared by a method wherein high surface area porous carrier material, preferably refractory inorganic oxide material, is (i) impregnated with a solution containing (a) a compound of a Group VIII noble metal selected from ruthenium, rhodium, palladium, osmium, iridium and platinum, (b) a compound of a promoter metal selected from germanium, tin, lead and rhenium and (c) a buffering agent selected from mono-, di- and tri-chloroacetic acids, oxalic acid, malonic acid, maleic acid, fumaric acid, tartaric acid, citric acid, o-chlorobenzoic acid, salicylic acid, phthalic acid, picric acid and periodic acid, the concentration of the buffering agent in the solution being sufficient to maintain the pH of,the solution at less than 3À5, preferably less than 1, throughout impregnation, (ii) dried and calcined and, optionally, (iii) subjected to reduction. The catalyst may have been prepared to contain halogen selected from fluorine, chlorine, bromine and iodine. Specified carrier materials are alumina, silica, zirconia, thoria, boria, alumina-silica and aluminazirconia; suitable aluminas are gamma-, eta- and theta-aluminas, especially gamma-alumina having an apparent bulk density of from 0À30 to 0À70 g./cm.<SP>3</SP>, an average pore volume of from 0À1 to 1 cm.<SP>3</SP>/g., an average pore diameter of from 20 to 300 Angstroms and a surface area of from 150 to 500 m.<SP>2</SP>/g. The feedstock may be a full boiling range gasoline fraction boiling in the 10-218 C. range or a gasoline fraction having an initial boiling point in the 66-121 C. range and an end boiling point in the 177-218 C. range. As exemplified, charge stock boiling in the 96-204 C. range is reformed in the presence of a fixed bed of catalyst which contains 0À375 weight per cent platinum and 0À25 weight per cent tin and which has been prepared by a procedure wherein gamma-alumina spheres having a diameter of 1À6 mm., an apparent bulk density of 0À5 g./cm.<SP>3</SP> and a surface area of 180 m.<SP>2</SP>/g. are impregnated with an aqueous solution prepared from chloroplatinic acid, stannous chloride, hydrochloric acid and oxalic acid (Example I) and of catalyst which contains platinum and either rhenium (Example II) or germanium (Example III). Reference is made to the use of catalyst prepared by the aforementioned general procedure for dehydrogenation, isomerization, destructive hydrogenation or hydrocracking of larger hydrocarbon molecules such as those occurring in the kerosine and gas oil boiling range; details of reaction conditions pertinent to alkyl aromatic isomerization and to hydrocracking are given. Reference is made to Specification 1,366,334.
Patent GB-326777-A (GB)
Title: Improvements in or relating to artificial filaments, yarns or threads and to the production thereof
IPC: A47C23/32
Filed: 1928-09-13
Abstract: 326,777. British Celanese, Ltd., Dreyfus, H., Dickie, W. A., and Taylor, W. I. Sept. 13, 1928. Divided on 321,762. Drawings to Specification. Yarns and threads.-Artificial filaments or threads are given a regular or systematic irregularity in denier by suitably varying the speed of the pump or pumps supplying the spinning solution to the jets. The method is applicable to the manufacture of threads by dry or wet spinning processes, and the initial material may be cellulose acetate or other cellulose ester or ether, viscose or an ammoniacal-copper solution of cellulose. The filaments may be formed into yarns showing the same variations as the individual filaments, or they may be reduced to staple lengths, either continuously with their production or subsequently thereto, or they may be twisted or doubled with threads or other artificial or natural filaments or fibres. Specifications 321,762 and 326,778 are referred to.
Patent GB-248800-A (GB)
Title: An improved wood substitute
IPC: C08L97/02
Filed: 1924-09-15
Abstract: 248,800. Clark, G. M., (Agasote Millboard Co.). Sept. 15, 1924. Plastic compositions containing fibres and resins &c.-Fibres and " red gum" (xanthorrhea resin) are mixed and moulded under pressure and heat. According to an example, 100 parts of wood fibre, 100 parts of comminuted red gum, and 5000 parts of water are mixed in a beater. The pulp is run into a mould and most of the water is removed by pressure, for example as described in Specification 7301/08, [Class 96, Paper &c.]. The dried board is subjected to a temperature of 300‹ F. and a pressure of 300 lbs. per sq. inch. Other ingredients such as colouring matter, oils, bitumen, or sulphur may also be added.
Patent GB-794639-A (GB)
Title: Purification of m-phenylenediamine
Filed: 1956-07-13
Abstract: 794,639. Phenylenediamines. GENERAL ANILINE & FILM CORPORATION. July 13, 1956 [Aug. 12, 1955], No. 21756/56. Class 2 (3). Meta-phenylene diamine or meta phenylene diamine containing substituents such as halogen, alkoxy, hydroxy, alkyl or aryl groups is recovered from its isomeric mixtures by mixing a heavy isomeric metal salt or a salt having a chromate ion with the isomeric mixture, thus forming an addition product of the salt and o- and p-phenylenediamine, and separating the said addition product from the m-phenylenediamine. The reaction is preferably carried out in aqueous solution at a temperature of 50- 100 C. Suitable heavy metal salts are e.g. vanadium, chromium, manganese, iron, cobalt, nickel, copper, zinc, silver, cadmium, tin and antimony, especially the chlorides, sulphates, acetates and nitrates. Heavy metal chromates may also be used also alkali metal chromates and bichromates. The amount of metal salt used is preferably in excess over that required to theoretically remove the o- and p-isomers. Di- or multi-ring compounds containing an mphenylene diamine group such as derivatives of naphthalene, anthracene, tetrahydronaphthalene and cyclohexylbenzenes may also be purified.
Patent GB-651515-A (GB)
Title: Improvements in or relating to electrical signalling systems
IPC: H04Q1/453
Filed: 1947-08-07
Abstract: 651,515. Automatic exchange systems. WESTERN ELECTRIC CO., Inc. Aug. 7, 1947, No. 21779. Convention date, Feb. 3, 1943. [Class 40 (iv)] [Also in Group XL (c)] In a signal receiver for impulses of combined voice frequencies similar to that described in Specification 651,521, false operation of the frequency selective channel relays by keying transients is prevented by initially amplifying each incoming impulse to a level below that required to operate the channel relays and after a short time interval raising the amplification to an operative level. The timing interval is provided by the slow-to-operate relay SPR, the controlling valve S of which is solely responsive to the low-level signals. Operation of relay SPR increases the gain of the volume limiter by changing the circuit conditions (see Group XL (c)), the transition in amplifier gain being controlled by a condenser CC and resistance L8 to prevent transient generation by the valve.
Patent GB-1306241-A (GB)
IPC: H03K3/012
Filed: 1970-05-06
Abstract: 1306241 Counters FORDERUNG DER FORSCHUNG AN DER EIDGENOSSISCHEN TECHNISCHEN HOCHSCHULE GES ZUR 6 May 1970 [6 June 1969] 21904/70 Heading G4A [Also in Division H3] A bi-stable has transistors T 1  to T 6  interconnected as shown in Fig. 4 (or the emitter and collector of T 5 , T 6  may be reversed), a substantially constant current is supplied to T 5 , T 6  bases, and an input trigger is fed to T 3 , T 4  bases through capacitor devices such as reverse diodes C. The constant base currents may be supplied by transistors T v , and the collector loads for T 1 -T 4  may also be constant current transistors T K ; alternatively resistors (R K , R v , Fig. 2, not shown) may be used. The bias for T V  and T K  is derived from diode-connected transistors T 7 , T 8  having collector resistors R 1 , R 2 . Alternatively (Fig. 5, not shown) the constan current transistors T v , T K  may all have their bases connected to a single diode-connected transistor (T 9 ) the emitters of the T V  transistors being connected through a resistor (R EV ) to the supply, and those of the T K  transistors being connected directly, this ensuring that the T 5 , T 6  base currents are less than T 1 -T 4  collector currents. In another alternative (Fig. 6, not shown) the T K  transistors have their bases connected to the T V  emitters, the T V  bases being biased by a Darlington pair (T 10 , T 11 ). In a counter, Fig. 7, nine bi-stables 1 as in Fig. 4 (or Figs. 2, 6, not shown) are arranged in groups of three, each group having constant current sources 2 for the bi-stables and a reference voltage source 3, all arranged on a respective integrated circuit. A fourth integrated circuit 4 has further constant-current devices T R  connected to earth.
Patent GB-776962-A (GB)
Title: Improvements in metallurgical converters
Inventor: REUTEN JOACHIM
IPC: C21C5/46
Filed: 1955-07-29
Abstract: 776,962. Metallurgical converters. PINTSCH BAMAG AKT.-GES. July 29, 1955, No. 21999/55. Class 72 A metallurgical converter rotatable about its longitudinal axis in a supporting frame and tiltable with the frame about a transverse axis is provided with a circumferential track ring or rings for rotary motion and a plurality of end thrust rollers are arranged externally of the ring or rings to prevent axial movement of the converter. As shown, a converter 1 has a pair of rings 4, 5, held apart by a spacer 6, attached by intermediate pieces 7 to the shell. Two pairs of supporting rollers 8, 9, one of each pair of which may be driven by an electric motor 13, engage the surfaces of the rings and three pairs of bevelled end-thrust rollers 14, 15 engage the bevelled outer edges of the rings and prevent axial movement of the converter. Additional support rollers 27 may also be provided to support the converter when tilted in the backward direction. The endthrust rollers may be mounted on shafts which are pivotable to bring the rollers out of engagement with the rings, thus allowing the converter body to be removed. The converter is preferably used in a slightly tilted position.
Patent GB-1029264-A (GB)
Title: An expansible wire controlled electric snap-action switch
IPC: H01H61/06
Filed: 1963-05-31
Abstract: 1,029,264. Thermal switches. TUNG-SOL ELECTRIC Inc. May 31, 1963 [June 1, 1962], No. 22009/63. Heading H2B. In a snap - action switch, intended for use as a flasher unit, a movable contact 20 on a flexible vane 14, held in compression by two crimped side portions, is controlled between engagement with a stop 60 and a contact 36 by a pull wire 28 held in tension between supports 24, 26 on the vane 14 and frame of the switch respectively. The pull wire is made to expand by a heating wire 34, insulated with quartz coating 32, which surrounds and heats the pull wire 28. The moving contact 20 and one end of the heating wire 34 are connected to a grounded source of potential and the fixed contact 36 and other end of wire 34 are connected through terminal 44 and a load, for example an indicator bulb, to ground, so that current passes through the heating wire when contacts 20, 36 are open, heating the pull wire 28, which expands and allows vane to snap over, closing contacts 20, 36. This shunts out the heating wire and current energizes the load 38 until the pull wire cools sufficiently to snap the contacts open. Fixed contact 36, stop 60 and wire anchorage 26 are adjustable.